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Windows 7: I can't add space to C Drive

16 Aug 2012   #1

Windows 7 Professional
I can't add space to C Drive

I am trying to format my E drive and convert the dynamic drive to a basic drive. I then want to Extend the C drive with this space. Can anyone please help? The format option for the E drive is grayed out. I attached a photo.

Attached Thumbnails
I can't add space to C Drive-disk-managment.png  
My System SpecsSystem Spec
16 Aug 2012   #2

64-bit Windows 10 Pro

Hello rkeenan, and welcome to Seven Forums.

Since Disk 0 and Disk 1 are separate physical HDDs, and Disk 0 is a OS HDD, you will not be able to extend C into E.

You do not want to convert Disk 0 to a dynamic disk to be able to do what you want since it's a OS HDD. Doing so will render Windows 7 unbootable.

You will be able to convert Disk 1 back to a basic disk if you like though.
Convert a Dynamic Disk to a Basic Disk
Sorry for the bad news, but hope it helps.

My System SpecsSystem Spec
16 Aug 2012   #3

Windows 7 Professional

Ah ok, i was hoping i could take space from E and add it to C. Looks like I should buy a different PC. I tried installing the new Max Payne to E and then running it but it kept giving me errors. Thank you for the help though. I appreciate it.
My System SpecsSystem Spec

16 Aug 2012   #4


Why not convert Disk1 to Basic and Clean Install Win7 on there to have much more space to work with?

To do this back up your data on the HD, wipe it with the convert command in Brink's tutorial, then boot the WIn7 installer to Clean Reinstall - Factory OEM Windows 7 which steps are the same for retail.

You'd want to unplug the other HD first before doing this, set Disk1 first to boot in BIOS setup, or swap the DIsk0 data cable to it. Afterwards plug back in Disk0 to access it's data, boot it using one-time BIOS Boot menu key, or wipe it with Diskpart Clean Command to repartition in Disk Mgmt as you please.
My System SpecsSystem Spec
16 Aug 2012   #5

Windows 7 Professional

I will try that if I can't get Max Payne to work again. Thank you
My System SpecsSystem Spec

 I can't add space to C Drive

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